January 31, 1874

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Features

The East River Bridge

Dr. Henry Draper's Recent Discoveries in Spectroscopic Analysis

Indicating Steam Engines

Gail Borden

Steam on Canals

Proceedings of the Patent Convention

A Year's Inventive Progress

Psychic Force

Scientific and Practical Information - January 31, 1874

Electro-Plating Balance

The Yama-Mai, or Oak Tree Silkworm

Hydraulic Engineering Extraordinary

The Canopus Stone

The Silver Mines of Peru

By Professor James Orton

The Baffle Drill-Proof Safe

Improved Furnace Bridge Wall

Improved Patent Candy Cutter

Overhead Steam Cranes for Dock Purposes

Decisions of the Courts - January 31, 1874

United States Circuit Court--Southern District of New York
PATENT GRAIN AND GRASS HARVESTERS.—CYRENUS WHEELER JR., vs. CYRUS H. MCCORMlCK.

Recent American Foreign Patents - January 31, 1874

Answers Correspondents - January 31, 1874

Communications Received - January 31, 1874

Canadian Patents - January 31, 1874

Departments

Letters

Correspondence - January 31, 1874

Recommended

New Books and Publications - January 31, 1874

Departments

Business and Personal - January 31, 1874

Index of Inventions - January 31, 1874

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Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $7.99

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